Overhaul

Fig. 26 Disassembled view of typical wheel cylinder:

1. Referring to Fig. 26 as a guide, remove boots, pistons, springs and cups from cylinder.
2. Place all parts, except cylinder casting in clean brake fluid. Wipe cylinder walls with clean brake fluid.
3. Examine cylinder bore. A scored bore may be honed providing the diameter is not increased more than .005 inch. Replace worn or damaged parts from the repair kit.
4. Before assembling, wash hands with soap and water only, as oil, kerosene or gasoline will contaminate rubber parts.
5. Lubricate cylinder wall and rubber cups with brake fluid.
6. Install springs, cups, pistons and boots in housing.
7. Wipe end of hydraulic line to remove any foreign matter.
8. Place hydraulic cylinder in position. Enter tubing into cylinder and start connecting fitting.
9. Secure cylinder to backing plate and then complete tightening of tubing fitting.
10. Install brake shoes, drum and wheel.
11. Bleed system as outlined previously, and adjust brakes.